Tokelau is by far the best longhouse to request when booking a Garden View Room due to it's central location and garden views.
Make sure to request Room 1915 or 1914. These are garden view rooms with a partial view of the lagoon. If you want to be on a higher floor, request 2915 or 3915. We were placed in 1915 and loved being able to walk out our patio doors right onto the beach. The higher floors require you to go into the hallway and walk outside that way. The beach is literally a few feet from your room. The moment you step onto your patio, you have a wonderful view of the castle. Every night we would either sit on our patio or go out onto the beach to watch the fireworks. These are by far the best value rooms at the Poly.
In closing, if you can live with not being able to see the castle while sitting in your bed, I tell anyone to book garden view and request Tokelau 1915 or 1914. You have a clear view of the castle and lagoon from your patio, the beach a few feet from your room, and a partial lagoon view from your room. Just perfect for me!